ABSTRACT
Neuropsychiatric syndromes following traumatic brain injury are not well delineated from the classical psychiatric syndromes such as depression, psychosis, or anxiety. As a term of art, they refer to complex brain-behavior relationships that affect cognition or that may result in neurobehavioral syndromes such as posttraumatic epilepsy, central nervous system hypersomnolence, posttraumatic headache syndrome, or normal-pressure hydrocephalus. Thus, these disorders present with both features of altered behavior and a brain-based neurological disorder.
